@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,500;12..96,600;12..96,700;12..96,800&family=Manrope:wght@400;500;600;700&family=JetBrains+Mono:wght@500;600;700&display=swap');

/* ============================================================
   ChemEase — Neumorphic Light Design System  (v=30)
   Light only. Warm cream base. Orange accent.
   ============================================================ */
:root{
  --bg:#F0EBE3; --ink:#243042; --muted:#414b59; --faint:#5f6a79; --line:#ddd6cb;
  --orange:#FF8A3D; --orange-d:#ef7420;
  --blue:#3B82F6; --green:#22C55E; --cyan:#06B6D4; --purple:#8B5CF6; --pink:#EC4899;
  --nu-l:#ffffff; --nu-d:#d4cabb;
  --rise:7px 7px 16px var(--nu-d),-7px -7px 16px var(--nu-l);
  --rise-sm:4px 4px 10px var(--nu-d),-4px -4px 10px var(--nu-l);
  --rise-lg:15px 15px 32px var(--nu-d),-15px -15px 32px var(--nu-l);
  --inset:inset 5px 5px 11px var(--nu-d),inset -5px -5px 11px var(--nu-l);
  --inset-sm:inset 3px 3px 7px var(--nu-d),inset -3px -3px 7px var(--nu-l);
  --r-sm:14px; --r:20px; --r-lg:28px; --r-xl:38px;
  --e:cubic-bezier(.22,1,.36,1);
  --maxw:1200px;
  --fd:'Bricolage Grotesque',system-ui,sans-serif;
  --fb:'Manrope',system-ui,sans-serif;
  --fm:'JetBrains Mono',ui-monospace,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:hidden;max-width:100vw}
body{font-family:var(--fb);background:var(--bg);color:var(--ink);line-height:1.6;overflow-x:hidden;max-width:100vw;-webkit-font-smoothing:antialiased;font-weight:500}
h1,h2,h3,h4{font-family:var(--fd);font-weight:700;line-height:1.12;letter-spacing:-.02em;color:var(--ink)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.mono{font-family:var(--fm)}
.gradient-text{color:var(--orange)}
.gradient-text-accent{color:var(--orange)}

/* ---------- Background: blobs + particles ---------- */
.blob-bg{position:fixed;inset:0;z-index:-3;overflow:hidden;pointer-events:none}
.blob{position:absolute;border-radius:46% 54% 58% 42%/52% 44% 56% 48%;opacity:.55;
  will-change:transform,border-radius;animation:blobMorph 19s ease-in-out infinite,blobFloat 24s ease-in-out infinite}
.blob-1{width:560px;height:560px;top:-180px;left:-160px;
  background:radial-gradient(circle at 34% 30%,#ffe0c4 0%,#ffb277 38%,#ff8a3d 72%)}
.blob-2{width:420px;height:420px;top:42%;left:-180px;opacity:.4;animation-delay:-6s,-9s;
  background:radial-gradient(circle at 36% 32%,#ffe6cf 0%,#ffba84 45%,#ff9d52 78%)}
.blob-3{width:520px;height:520px;bottom:-200px;right:-170px;opacity:.42;animation-delay:-11s,-4s;
  background:radial-gradient(circle at 36% 30%,#d8f6f1 0%,#8fe3d8 45%,#4fd1c5 80%)}
.blob-4{width:340px;height:340px;top:8%;right:-120px;opacity:.34;animation-delay:-3s,-14s;
  background:radial-gradient(circle at 36% 30%,#ffe6cf 0%,#ffc89a 50%,#ffa55f 82%)}
@keyframes blobMorph{
  0%,100%{border-radius:46% 54% 58% 42%/52% 44% 56% 48%}
  33%{border-radius:62% 38% 44% 56%/48% 60% 40% 52%}
  66%{border-radius:40% 60% 56% 44%/58% 42% 58% 42%}
}
@keyframes blobFloat{
  0%,100%{transform:translate(0,0) scale(1)}
  50%{transform:translate(26px,-22px) scale(1.06)}
}
#bg-network{position:fixed;inset:0;width:100%;height:100%;z-index:-2;pointer-events:none;opacity:.7}
.bg-glow{display:none}
.scroll-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:200;
  background:linear-gradient(90deg,var(--orange),var(--orange-d));border-radius:0 3px 3px 0;transition:width .1s linear}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;cursor:pointer;border:none;
  font-family:var(--fb);font-weight:700;font-size:.95rem;color:var(--ink);background:var(--bg);
  padding:13px 24px;border-radius:14px;box-shadow:var(--rise);transition:transform .18s var(--e),box-shadow .22s,color .2s}
.btn svg{width:18px;height:18px}
.btn:hover{transform:translateY(-2px);box-shadow:var(--rise-lg)}
.btn:active{box-shadow:var(--inset);transform:translateY(0)}
.btn--primary{background:linear-gradient(145deg,#ff9a52,var(--orange-d));color:#fff;
  box-shadow:6px 6px 14px var(--nu-d),-6px -6px 14px var(--nu-l)}
.btn--primary:hover{box-shadow:8px 8px 20px var(--nu-d),-8px -8px 20px var(--nu-l)}
.btn--primary:active{box-shadow:inset 4px 4px 9px #d2630f,inset -4px -4px 9px #ff9a52}
.btn--ghost{background:var(--bg);color:var(--ink)}
.btn--sm{padding:10px 18px;font-size:.86rem;border-radius:12px}
.btn--lg{padding:16px 30px;font-size:1.02rem;border-radius:16px}

/* ---------- Nav ---------- */
.nav{position:fixed;top:18px;left:0;right:0;z-index:120;transition:top .3s}
.nav__inner{display:flex;align-items:center;gap:20px;background:var(--bg);
  border-radius:22px;padding:15px 16px 15px 26px;box-shadow:var(--rise);transition:box-shadow .3s,background .3s,padding .3s}
.nav.scrolled .nav__inner{box-shadow:var(--rise-sm)}
.nav__logo{display:flex;align-items:center;gap:12px;font-family:var(--fd);font-weight:800;font-size:1.28rem;letter-spacing:-.02em}
.nav__logo img{width:42px;height:42px;border-radius:12px}
.nav__links{display:flex;align-items:center;gap:6px;margin-left:auto;list-style:none}
.nav__link{padding:11px 17px;border-radius:12px;color:var(--muted);font-weight:600;font-size:.95rem;transition:color .2s,box-shadow .25s}
.nav__link:hover{color:var(--ink);box-shadow:var(--inset-sm)}
.nav__burger{display:none;width:44px;height:44px;border-radius:13px;border:none;background:var(--bg);
  box-shadow:var(--rise-sm);flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
.nav__burger span{width:19px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.nav__mobile{display:none}

/* ---------- Hero ---------- */
.hero{padding:140px 0 80px;position:relative}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:9px;padding:9px 17px;border-radius:999px;font-size:.78rem;
  font-weight:700;letter-spacing:.03em;color:var(--orange-d);background:var(--bg);box-shadow:var(--inset-sm)}
.badge__dot{width:8px;height:8px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 4px rgba(255,138,61,.2)}
.hero__title{font-size:clamp(2.5rem,5.4vw,4rem);margin:22px 0 18px}
.hero__title .line{display:block}
.hero__subtitle{font-size:1.12rem;color:var(--muted);max-width:480px;margin-bottom:26px}
.countdown{display:inline-block;background:var(--bg);border-radius:var(--r);padding:16px 22px;box-shadow:var(--inset);margin-bottom:22px}
.countdown__label{font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin-bottom:10px}
.countdown__row{display:flex;gap:14px}
.countdown__item{text-align:center;min-width:54px}
.countdown__num{font-family:var(--fm);font-size:1.7rem;font-weight:700;color:var(--orange-d);line-height:1}
.countdown__num.pulse{animation:pop .4s var(--e)}
@keyframes pop{0%{transform:scale(1)}40%{transform:scale(1.18)}100%{transform:scale(1)}}
.countdown__unit{font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);margin-top:6px}
.hero__actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.hero__actions .btn{min-width:158px}
.hero__store{margin-top:6px}
.store-badge{display:inline-flex;align-items:center;gap:12px;padding:11px 20px;border-radius:15px;background:var(--bg);box-shadow:var(--rise-sm)}
.store-badge .gplay{width:26px;height:26px}
.store-badge small{display:block;font-size:.64rem;letter-spacing:.06em;text-transform:uppercase;color:var(--faint);font-weight:700}
.store-badge b{font-size:1rem;font-family:var(--fd)}
.hero__stage{position:relative;display:grid;place-items:center;min-height:380px}
.mol3d{width:420px;height:420px;max-width:100%;cursor:grab;touch-action:none}
.mol3d:active{cursor:grabbing}
.hero__stage-hint{position:absolute;bottom:6px;font-size:.74rem;color:var(--faint);font-weight:600;
  padding:6px 14px;border-radius:999px;background:var(--bg);box-shadow:var(--inset-sm)}
.mol-accent{position:absolute;width:220px;height:220px;opacity:.72;z-index:0;pointer-events:none}
.hero__appicon{display:none}

/* ---------- Sections / headings ---------- */
.section{padding:56px 0;position:relative}
.section--lg{padding:70px 0}
.section + .section::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:min(1080px,84%);height:1px;background:linear-gradient(90deg,transparent,var(--line) 18%,var(--line) 82%,transparent)}
.section-head{text-align:center;max-width:680px;margin:0 auto 52px}
.section-head__label{display:inline-block;font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--orange-d);padding:7px 16px;border-radius:999px;background:var(--bg);box-shadow:var(--inset-sm);margin-bottom:18px}
.section-head__title{font-size:clamp(1.9rem,3.8vw,2.7rem)}
.section-head__desc{color:var(--muted);font-size:1.06rem;margin-top:16px}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--e),transform .7s var(--e)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.1s}.reveal.d2{transition-delay:.2s}.reveal.d3{transition-delay:.3s}

/* ---------- Demo / phones ---------- */
.demo{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center}
.demo__phone{justify-self:center;position:relative;width:280px;border-radius:44px;padding:14px;
  background:linear-gradient(155deg,#fbfaf7,#e7e1d6);box-shadow:var(--rise-lg)}
.demo__phone::before{content:"";position:absolute;right:-3px;top:26%;width:4px;height:58px;border-radius:3px;background:#cbc2b4}
.demo__screens{border-radius:30px;overflow:hidden;box-shadow:0 0 0 4px #12161f}
.demo__video{width:100%;display:block}
.demo__step-label{display:inline-block;font-size:.74rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--orange-d);padding:7px 15px;border-radius:999px;background:var(--bg);box-shadow:var(--inset-sm);margin-bottom:18px}
.demo__caption-title{font-size:1.7rem;margin-bottom:14px}
.demo__caption-desc{color:var(--muted);margin-bottom:22px}
.shot__highlights{list-style:none;display:grid;gap:12px}
.shot__highlights li{display:flex;align-items:flex-start;gap:11px;color:var(--muted);font-weight:500}
.shot__highlights li::before{content:"";flex:0 0 auto;width:20px;height:20px;margin-top:2px;border-radius:7px;
  background:var(--bg);box-shadow:var(--rise-sm);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23ef7420' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:center}

/* ---------- How / steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-bottom:40px}
.step{background:var(--bg);border-radius:var(--r-lg);padding:34px 28px;box-shadow:var(--rise);transition:transform .3s var(--e),box-shadow .3s}
.step:hover{transform:translateY(-6px);box-shadow:var(--rise-lg)}
.step__num{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-family:var(--fm);font-weight:700;
  font-size:1.2rem;color:var(--orange-d);background:var(--bg);box-shadow:var(--inset);margin-bottom:18px}
.step__title{font-size:1.2rem;margin-bottom:9px}
.step__desc{color:var(--muted);font-size:.96rem}
.benefits{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}
.benefit{display:inline-flex;align-items:center;gap:9px;padding:11px 19px;border-radius:14px;font-weight:600;
  font-size:.92rem;color:var(--ink);background:var(--bg);box-shadow:var(--rise-sm)}
.benefit svg{width:16px;height:16px;color:var(--green);fill:none}

/* ---------- Features bento ---------- */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{position:relative;background:var(--bg);border-radius:var(--r-lg);padding:32px 28px;box-shadow:var(--rise);
  transition:box-shadow .3s,transform .25s var(--e);overflow:hidden}
.card::after{content:"";position:absolute;inset:0;border-radius:inherit;opacity:0;transition:opacity .3s;pointer-events:none;
  background:radial-gradient(360px circle at var(--mx,50%) var(--my,0%),rgba(255,138,61,.1),transparent 60%)}
.card:hover{box-shadow:var(--rise-lg)}
.card:hover::after{opacity:1}
.card--wide{grid-column:span 2}
.card__icon{width:62px;height:62px;border-radius:18px;display:grid;place-items:center;color:var(--c,var(--orange-d));
  background:color-mix(in srgb,var(--c,#FF8A3D) 13%,var(--bg));box-shadow:var(--rise-sm);margin-bottom:20px}
.card__icon svg{width:28px;height:28px;fill:none}
.card__title{font-size:1.22rem;margin-bottom:10px}
.card__desc{color:var(--muted);font-size:.96rem}
.card__formula{display:inline-block;margin-top:16px;font-family:var(--fm);font-size:.84rem;font-weight:600;color:var(--orange-d);
  padding:8px 14px;border-radius:11px;background:var(--bg);box-shadow:var(--inset-sm)}
.tags{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:40px}
.tag{padding:9px 17px;border-radius:999px;font-size:.86rem;font-weight:600;color:var(--muted);background:var(--bg);box-shadow:var(--rise-sm)}

/* ---------- Screenshots ---------- */
.shot{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;margin-bottom:84px}
.shot:last-child{margin-bottom:0}
.shot--reverse .shot__text{order:2}
.shot__index{font-family:var(--fm);font-size:.82rem;font-weight:600;color:var(--orange-d);margin-bottom:14px}
.shot__title{font-size:1.7rem;margin-bottom:14px}
.shot__desc{color:var(--muted);margin-bottom:22px}
.shot__media{display:grid;place-items:center}
.phone{position:relative;width:262px;border-radius:42px;padding:13px;
  background:linear-gradient(155deg,#fbfaf7,#e7e1d6);box-shadow:var(--rise-lg);animation:float 6s ease-in-out infinite}
.phone::before{content:"";position:absolute;right:-3px;top:26%;width:4px;height:56px;border-radius:3px;background:#cbc2b4}
.phone img{width:100%;border-radius:30px;box-shadow:0 0 0 4px #12161f}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{text-align:center;padding:34px 18px;border-radius:var(--r-lg);background:var(--bg);box-shadow:var(--rise);transition:transform .3s var(--e)}
.stat:hover{transform:translateY(-5px)}
.stat__icon{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;color:var(--orange-d);
  background:var(--bg);box-shadow:var(--inset);margin:0 auto 16px}
.stat__icon svg{width:26px;height:26px;fill:none}
.stat__num{font-family:var(--fm);font-size:2.3rem;font-weight:700;color:var(--orange-d);line-height:1}
.stat__label{font-size:.88rem;color:var(--muted);margin-top:8px;font-weight:600}

/* ---------- FAQ ---------- */
.faq{max-width:780px;margin:0 auto;display:grid;gap:16px}
.faq__item{background:var(--bg);border-radius:var(--r);box-shadow:var(--rise-sm);overflow:hidden;transition:box-shadow .3s}
.faq__item.open{box-shadow:var(--rise)}
.faq__q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer;border:none;
  background:none;text-align:left;font-family:var(--fd);font-weight:700;font-size:1.04rem;color:var(--ink);padding:22px 24px}
.faq__q svg{width:20px;height:20px;flex:0 0 auto;color:var(--orange-d);transition:transform .3s}
.faq__item.open .faq__q svg{transform:rotate(180deg)}
.faq__a{max-height:0;overflow:hidden;transition:max-height .35s var(--e)}
.faq__a p{padding:0 24px 22px;color:var(--muted)}

/* ---------- CTA ---------- */
.cta__box{text-align:center;max-width:760px;margin:0 auto;background:var(--bg);border-radius:var(--r-xl);
  padding:60px 44px;box-shadow:var(--rise-lg);position:relative;overflow:hidden}
.cta__title{font-size:clamp(1.8rem,3.6vw,2.5rem);margin-bottom:16px}
.cta__desc{color:var(--muted);font-size:1.06rem;max-width:520px;margin:0 auto 28px}

/* ---------- Dialog (pre-register) ---------- */
.dialog{border:none;padding:0;margin:auto;background:transparent;max-width:440px;width:92%;color:var(--ink)}
.dialog::backdrop{background:rgba(40,40,38,.5);backdrop-filter:blur(3px)}
.dialog__inner{position:relative;background:var(--bg);border-radius:var(--r-xl);padding:40px 34px;box-shadow:0 24px 70px rgba(36,30,24,.34)}
.dialog__inner h3{font-size:1.5rem;margin-bottom:12px;color:var(--orange-d)}
.dialog__inner p{color:var(--muted);font-size:.96rem;margin-bottom:22px}
.dialog__x{position:absolute;top:16px;right:16px;width:38px;height:38px;border-radius:12px;border:none;cursor:pointer;
  font-size:1.3rem;line-height:1;color:var(--muted);background:var(--bg);box-shadow:var(--rise-sm)}
.dialog__x:active{box-shadow:var(--inset-sm)}
.field{margin-bottom:16px}
.field input{width:100%;font-family:var(--fb);font-size:1rem;font-weight:500;color:var(--ink);border:none;outline:none;
  padding:15px 18px;border-radius:14px;background:var(--bg);box-shadow:var(--inset)}
.field input::placeholder{color:var(--faint)}
.prereg-msg{font-size:.88rem;font-weight:600;margin-top:14px;min-height:1.2em}
.prereg-msg.ok{color:var(--green)}
.prereg-msg.err{color:#e1483d}
.prereg-form--done .field,.prereg-form--done button[type=submit]{display:none}

/* ---------- Footer ---------- */
.footer{padding:60px 0 40px;margin-top:40px}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;background:var(--bg);
  border-radius:var(--r-xl);padding:48px 44px;box-shadow:var(--rise)}
.footer__logo{display:inline-flex;align-items:center;gap:11px;font-family:var(--fd);font-weight:800;font-size:1.2rem;margin-bottom:14px}
.footer__logo img{width:40px;height:40px;border-radius:11px}
.footer__about{color:var(--muted);font-size:.92rem;max-width:300px}
.footer__h{font-size:.78rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-bottom:16px}
.footer ul{list-style:none;display:grid;gap:11px}
.footer ul a{color:var(--muted);font-size:.94rem;font-weight:500;transition:color .2s}
.footer ul a:hover{color:var(--orange-d)}
.footer__bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:28px;padding-top:8px;color:var(--faint);font-size:.86rem}

/* ---------- Legal pages ---------- */
.legal{padding:130px 0 70px}
.legal__card{max-width:840px;margin:0 auto;background:var(--bg);border-radius:var(--r-xl);
  padding:54px 50px;box-shadow:var(--rise)}
.legal__back{display:inline-flex;align-items:center;gap:9px;font-weight:700;font-size:.9rem;color:var(--orange-d);
  padding:10px 16px;border-radius:12px;background:var(--bg);box-shadow:var(--rise-sm);margin-bottom:30px}
.legal__back svg{width:17px;height:17px}
.legal__back:active{box-shadow:var(--inset-sm)}
.legal h1{font-size:clamp(2rem,4vw,2.6rem);margin-bottom:10px}
.legal__meta{color:var(--faint);font-size:.88rem;font-weight:600;margin-bottom:34px}
.legal__body h2{font-size:1.4rem;margin:34px 0 12px}
.legal__body h3{font-size:1.1rem;margin:22px 0 8px;color:var(--ink)}
.legal__body p{color:var(--muted);margin-bottom:14px}
.legal__body ul,.legal__body ol{color:var(--muted);margin:0 0 16px 4px;padding-left:22px;display:grid;gap:8px}
.legal__body a{color:var(--orange-d);font-weight:600}
.legal__body strong{color:var(--ink)}

/* ---------- Responsive ---------- */
@media (max-width:920px){
  .nav__links{display:none}
  .nav__burger{display:flex;margin-left:auto}
  .nav__inner{background:none;box-shadow:none;padding:10px 14px}
  .nav.scrolled .nav__inner{background:var(--bg);box-shadow:var(--rise-sm)}
  .nav.open .nav__burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav.open .nav__burger span:nth-child(2){opacity:0}
  .nav.open .nav__burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav__mobile{display:none;flex-direction:column;gap:4px;width:min(250px,70vw);margin:10px 14px 0 auto;background:var(--bg);
    border-radius:18px;padding:12px;box-shadow:0 18px 50px rgba(36,30,24,.22)}
  .nav__mobile.open{display:flex}
  .nav__mobile .nav__link{padding:12px 16px}
  .nav__mobile .btn{margin-top:6px}
  .hero__grid,.demo,.shot,.shot--reverse{grid-template-columns:1fr;gap:38px}
  .shot--reverse .shot__text{order:0}
  .hero__stage{display:none}
  .hero__stage .mol3d,.hero__stage-hint{display:none}
  .hero__appicon{display:block;width:min(72%,290px);height:auto;transform-origin:center;backface-visibility:visible;animation:coinDrop 1.25s cubic-bezier(.3,1.04,.5,1) both,float 6s ease-in-out 1.5s infinite;filter:drop-shadow(0 18px 34px rgba(239,116,32,.28))}
  .mol3d{width:190px;height:190px}
  .bento{grid-template-columns:repeat(2,1fr)}
  .card--wide{grid-column:span 2}
  .steps{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:repeat(3,1fr)}
  .footer__grid>div:first-child{grid-column:1/-1;margin-bottom:6px}
}
@media (min-width:601px) and (max-width:920px){
  .hero__grid{grid-template-columns:1fr}
}
@media (max-width:600px){
  .hero__grid{grid-template-columns:1fr}
  .hero__text{display:flex;flex-direction:column;align-items:center;text-align:center}
  .hero__subtitle{margin-left:auto;margin-right:auto}
  .hero__stage{order:-1}
  .hero__appicon{width:170px}
  .hero__actions{width:100%;justify-content:center}
  .hero__actions .btn{flex:0 1 auto;min-width:0}
}
@media (max-width:560px){
  .container{padding:0 18px}
  .hero{padding:120px 0 60px}
  .nav__inner{padding:9px 12px 9px 16px}
  .countdown__row{gap:9px}
  .countdown__num{font-size:1.4rem}
  .bento,.stats,.footer__grid{grid-template-columns:1fr}
  .card--wide{grid-column:span 1}
  .hero__actions{flex-direction:column;align-items:stretch;width:100%}
  .hero__actions .btn{width:100%;min-width:0}
  .store-badge{justify-content:center}
  .cta__box{padding:44px 26px}
  .legal__card{padding:38px 24px}
  .footer__bottom{flex-direction:column}
  .mol-accent{display:none}
  .calc{padding:24px 18px}
  .calc__out{flex-direction:column;align-items:flex-start;gap:6px;padding:16px}
}
@media (prefers-reduced-motion:reduce){
  .blob,.phone{animation:none}
  *{scroll-behavior:auto}
}

/* ---------- Screenshots: horizontal rail ---------- */
.shot-panel{background:var(--bg);border-radius:var(--r-xl);box-shadow:var(--rise);padding:28px 20px 14px}
.shot-rail{display:flex;justify-content:flex-start;gap:24px;overflow-x:auto;padding:30px 8px 18px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.shot-rail::-webkit-scrollbar{height:8px}
.shot-rail::-webkit-scrollbar-track{background:transparent}
.shot-rail::-webkit-scrollbar-thumb{background:var(--nu-d);border-radius:8px}
.shot-card{position:relative;flex:0 0 auto;width:190px;scroll-snap-align:center;text-align:center;margin:0}
.shot-card .phone--sm{margin:0 auto;animation:none;transform-origin:center top;transition:transform .35s var(--e),box-shadow .35s}
.shot-card:hover{z-index:5}
.shot-card:hover .phone--sm{transform:translateY(-9px) scale(1.06);box-shadow:var(--rise-lg)}
.phone--sm{width:188px;border-radius:34px;padding:10px}
.phone--sm::before{height:46px;top:27%}
.phone--sm img{border-radius:25px}
.shot-card figcaption{margin-top:20px;display:grid;gap:5px}
.shot-card__i{font-family:var(--fm);font-size:.76rem;font-weight:700;color:var(--orange-d)}
.shot-card b{font-family:var(--fd);font-size:1.02rem;color:var(--ink)}
.shot-card__d{color:var(--muted);font-size:.85rem}
@media (min-width:1040px){.shot-rail{justify-content:center;overflow-x:visible}}

/* ---------- Try It Yourself: molarity calculator ---------- */
.try{display:grid;grid-template-columns:.92fr 1.08fr;gap:48px;align-items:center;margin-bottom:44px}
.try__copy h3{font-size:1.65rem;margin-bottom:14px}
.try__copy p{color:var(--muted);margin-bottom:18px}
.try__formula{display:inline-block;font-size:.84rem;font-weight:600;color:var(--orange-d);max-width:100%;white-space:normal;word-break:break-word;
  padding:11px 16px;border-radius:12px;background:var(--bg);box-shadow:var(--inset-sm);margin-bottom:24px}
.calc{background:var(--bg);border-radius:var(--r-lg);padding:32px;box-shadow:var(--rise)}
.calc__row{margin-bottom:18px}
.calc__row label{display:block;font-size:.74rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.calc__in{display:flex;align-items:center;border-radius:13px;background:var(--bg);box-shadow:var(--inset);overflow:hidden}
.calc__in input{flex:1;min-width:0;border:none;outline:none;background:none;font-family:var(--fm);font-size:1.05rem;font-weight:600;color:var(--ink);padding:14px 16px}
.calc__in input[type=text]{font-family:var(--fb)}
.calc__select{flex:1;width:100%;border:none;outline:none;background:none;font-family:var(--fb);font-size:.96rem;font-weight:600;color:var(--ink);
  padding:14px 40px 14px 16px;cursor:pointer;-webkit-appearance:none;appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23ef7420' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center}
.calc__in .unit{padding:0 16px;color:var(--faint);font-size:.9rem;font-weight:700;white-space:nowrap}
.calc__out{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:6px;
  padding:18px 22px;border-radius:14px;background:linear-gradient(145deg,#ff9a52,var(--orange-d));color:#fff;
  box-shadow:6px 6px 14px var(--nu-d),-6px -6px 14px var(--nu-l)}
.calc__out-l{font-weight:700;font-size:.82rem;letter-spacing:.05em;text-transform:uppercase;opacity:.92}
.calc__out-v{font-family:var(--fm);font-size:1.55rem;font-weight:700;line-height:1}
.calc__note{font-size:.8rem;color:var(--faint);margin:14px 0 0}
@media (max-width: 920px) {
  .try { grid-template-columns: 1fr; gap: 32px; text-align: center; }
}
/* ---------- Pre-register: trust line + success state ---------- */
.dialog__fine{display:flex;align-items:center;gap:8px;font-size:.78rem;color:var(--faint);margin-top:14px}
.dialog__fine svg{width:14px;height:14px;flex:0 0 auto}
.prereg-form--done .dialog__fine{display:none}
.prereg-form--done .prereg-msg.ok{display:flex;align-items:flex-start;gap:11px;margin-top:0;
  padding:18px 20px;border-radius:16px;font-weight:600;color:#1f8a4c;
  background:color-mix(in srgb,var(--green) 13%,var(--bg));box-shadow:var(--inset-sm)}
.prereg-form--done .prereg-msg.ok::before{content:"";flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  background:var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center/14px no-repeat}

/* hide decorative molecule accents on mobile/tablet (prevents overflow + clutter) */
@media (max-width:920px){ .mol-accent{display:none} }

/* ---------- Mobile fixes: calculator alignment + smaller blobs ---------- */
.try{min-width:0}
.try>*{min-width:0;max-width:100%}
.calc{max-width:100%}
.try__formula{max-width:100%}
@media (max-width:920px){ .calc{text-align:left} }
@media (max-width:560px){ .calc{padding:24px 18px} }

/* two extra accent blobs */
.blob-5{width:300px;height:300px;top:62%;right:-120px;opacity:.3;animation-delay:-8s,-3s;
  background:radial-gradient(circle at 36% 30%,#ffe6cf 0%,#ffb277 70%)}
.blob-6{width:240px;height:240px;top:24%;left:44%;opacity:.22;animation-delay:-13s,-6s;
  background:radial-gradient(circle at 36% 30%,#d8f6f1 0%,#8fe3d8 75%)}

/* much smaller, scattered blobs on phones */
@media (max-width:600px){
  .blob-1{width:200px;height:200px;top:-60px;left:-55px}
  .blob-2{width:150px;height:150px;top:34%;left:-65px}
  .blob-3{width:190px;height:190px;bottom:-60px;right:-55px}
  .blob-4{width:130px;height:130px;top:6%;right:-40px;opacity:.3}
  .blob-5{width:160px;height:160px;top:66%;right:-50px;opacity:.26}
  .blob-6{width:140px;height:140px;top:26%;left:50%;opacity:.2}
}

/* ---------- Mobile: smaller brick/masonry feature cards ---------- */
@media (max-width:600px){
  .bento{display:block;column-count:2;column-gap:13px}
  .card,.card--wide{display:block;width:100%;grid-column:auto;
    break-inside:avoid;-webkit-column-break-inside:avoid;page-break-inside:avoid;
    margin:0 0 13px;padding:18px 15px;border-radius:18px}
  .card__icon{width:44px;height:44px;border-radius:13px;margin-bottom:13px}
  .card__icon svg{width:21px;height:21px}
  .card__title{font-size:1rem;margin-bottom:6px;line-height:1.2}
  .card__desc{font-size:.82rem;line-height:1.45}
  .card__formula{font-size:.72rem;margin-top:11px;padding:6px 10px}
  .card::after{display:none}
}
@media (max-width:380px){
  .bento{column-count:1}
}

/* ---------- Hero app-icon: coin-toss drop-in ---------- */
.hero__stage{perspective:900px}
@keyframes coinDrop{
  0%   {opacity:0;transform:translateY(-185%) rotateX(0deg) scale(.9)}
  12%  {opacity:1}
  55%  {transform:translateY(0) rotateX(540deg) scale(1)}
  68%  {transform:translateY(-13%) rotateX(620deg)}
  80%  {transform:translateY(0) rotateX(688deg)}
  90%  {transform:translateY(-5%) rotateX(706deg)}
  100% {transform:translateY(0) rotateX(720deg) scale(1)}
}
@media (prefers-reduced-motion:reduce){ .hero__appicon{animation:none} }

/* ---------- Mobile refinements: stats brick + tighter bento ---------- */
@media (max-width:600px){
  .bento{column-gap:11px}
  .card,.card--wide{margin:0 0 11px;padding:15px 13px}
  .card__icon{width:42px;height:42px;border-radius:12px;margin-bottom:11px}
  .card__icon svg{width:20px;height:20px}
  .card__title{font-size:.95rem}
  .card__desc{font-size:.79rem}
  .card__formula{font-size:.7rem;margin-top:10px}
  .tags{margin-top:24px;gap:10px}
  .section--lg{padding:46px 0}
}
@media (max-width:560px){
  .stats{grid-template-columns:repeat(2,1fr);gap:12px}
  .stat{padding:20px 10px}
  .stat__icon{width:44px;height:44px;border-radius:13px;margin-bottom:11px}
  .stat__icon svg{width:22px;height:22px}
  .stat__num{font-size:1.6rem}
  .stat__label{font-size:.78rem}
}

/* ---------- FAQ popup ---------- */
.dialog--faq{max-width:560px}
.dialog--faq .dialog__inner{max-height:86vh;overflow-y:auto;padding:34px 30px}
.dialog--faq h3{font-size:1.5rem;margin-bottom:20px;color:var(--ink)}
.dialog--faq .faq{max-width:none;margin:0}

/* ---------- Legal quick-access popup ---------- */
.dialog--legal{max-width:460px}
.dialog--legal h3{font-size:1.4rem;margin-bottom:18px;color:var(--ink)}
.legal-links{display:grid;gap:12px}
.legal-links a{display:block;padding:16px 18px;border-radius:16px;background:var(--bg);box-shadow:var(--rise-sm);
  font-family:var(--fd);font-weight:700;color:var(--ink);transition:box-shadow .22s,transform .18s}
.legal-links a:hover{transform:translateY(-2px);box-shadow:var(--rise)}
.legal-links a:active{box-shadow:var(--inset-sm)}
.legal-links a span{display:block;font-family:var(--fb);font-weight:500;font-size:.84rem;color:var(--muted);margin-top:3px}